The Bermuda Stock Exchange (BSX) opened and closed at 1,142.23 yesterday with 1,122 shares traded.A total of 1,022 shares worth BD$5,228.60 and 100 shares worth US$1,020 changed hands during the day.Butterfield Bank transacted 4,022 shares, but its share price held firm at $1.30.The BSX Insurance Index fell seven points (0.73 percent) to 947.